baber/WOPTO huggingface dataset:
Patent GB-746069-A (GB)
Title: Improvements in or relating to electrical impulse generating circuits
IPC: H04M19/02
Filed: 1953-10-12
Abstract: 746,069. Electromagnetic interrupters. GENERAL ELECTRIC CO., Ltd., and GODFREY, B. J. F. Oct. 12, 1954 [Oct. 12, 1953], No. 27971/53. Class 38(5) A circuit, Fig. 1, producing impulses of variable frequency and duration comprises three relays X, Y, Z, controlling, respectively, contacts denoted by the corresponding reference letter followed by a numeral, the Figure showing the circuit in its de-energized condition. The relay X is of the quick release kind, the relays Y, Z having a variable delayed release depending on the value of resistors 7, 9, 8, 10 in shunt with their operating windings 5, 6. The impulses are produced in circuits connected to the terminals 1. 2 and supplied from a positive source connected at 11, 12, the return (not shown) being through earth.. In operation the terminals 3, 4 are connected to the + ve and - ve of a D.C. source whereby the relay Y is operated over the contact X1 and closes contact Y1 to operate relay X. Relay X closes contacts X3, X4 to initiate an impulse in the circuits connected at 1, 2; also, contact X2 is closed to complete a holding circuit for the relay X, and contact X1 changes over to operate relay Z, whereupon contact 21 is opened. Relay Y now releases at the time determined by the rheostat 7 whereby contact Y1 is opened and the relay X released. Thus the contacts X3, X4 are opened to terminate the first impulse; also the contact X2 is opened and contact X1 changes over to operate relay Y whereupon contact Y1 is closed. Relay Z now releases at a time determined by the rheostat 8 whereupon contact Z1 closes and the relay X is operated to repeat the cycle. Thus the time for which the relay X is operated and hence the duration of the pulses is equal to the release time of-the relay Y, and the time for which the relay X is unoperated and thus the space between the pulses is equal to the release time of the relav Z. When the "operated" and "inoperated" times are approximately equal the circuit may be modified, Fig. 2, the duration of both the "times" being adjustable by a common rheostat 16, and the ratio between the two "times" being determined by a rheostat 15. The delay current of the relay Z when this relay is released flows through the rectifier 13, and that of the relay Z through the rectifier 14. The circuit operates in the manner described for Fig. 1 and the remainder of the circuit is the same as shown in that Figure. The relays Y, Z are arranged to be saturated for the lowest voltage likely to be applied at the terminals 3, 4.
Patent GB-533198-A (GB)
Title: Improvements in or relating to apparatus for the electrical treatment of gas
IPC: B03C3/41
Filed: 1939-10-17
Abstract: 533,198. Electrical precipitation apparatus. LODGE-COTTRELL, Ltd. (Research Corporation of New York.). Oct. 17, 1939, No. 28075. [Class 39 (i)] The discharge electrodes in electrical gas cleaning apparatus comprises a rigid supporting frame 14, 141 round which are wound in helical form helices 20 of fine wire. The frame may also carry fine wire discharge elements 19. As shown the application is to a precipitator of the type having collecting plates 13 supported and electrically connected to the shell 10, in which the gas under treatment flows vertically between inlet and outlet openings 11, 12. The discharge electrode system is supported by insulators 16 mounted in heated housings 17 ; and liquid sprays 21 are mounted at the upper end of the shell. A modification is described for pipe type cleaners, Fig. 2, not shown, in which the discharge elements consist of rods with the helices wound around them helically. The rods are supported at the lower ends on beams carried by insulators in housings protected from the entrance of liquid by obliquely arranged sleeves. The pipe collectors are supported by a diaphragm dividing the shell into upper and lower chambers ; and liquid sprays are mounted at the upper end of the shell. The wire helices are secured to their supports at spaced points by welding and are preferably of non-resilient material, so as to maintain their position in the event of a break at any point.
Patent GB-1036208-A (GB)
Title: Intrusion detection system
IPC: G08B13/26
Filed: 1963-07-16
Abstract: 1,036,208. Intruder alarm systems. R. H. IRISH. July 16, 1963 [July 30, 1962], No. 28085/63. Heading G4N. An intruder detection system comprises a circuit loop connected to an A.C. supply and arranged in an array over an area to be protected so that an. attempted entry changes the inductance of the loop. As described with reference to Fig. 3, the loop 45 is arranged to have a number of parallel sections G, J, K, H and is connected between source 10 and a resonant circuit 48. Changes in the output from the resonant circuit 48 are detected by detector 49, the resulting output operating an alarm. In order to avoid false operation due to variations in the A.C. supply a second output is fed from the source 10 direct to the detector 49, and is compared with the output from the loop. Two mutually coupled loops may be used instead of a single loop and a differentiating circuit may be included between the detector and the indicator, Fig. 1 (not shown). In an arrangement for guarding a door, Fig. 5, primary and secondary loops 82, 92 are arranged on opposite sides of the door frame and are coupled by an intermediate loop 85 mounted on the door, so that opening the door varies the coupling between the primary and secondary loops.
Patent GB-1278051-A (GB)
Title: Production of polyethylene 1,2-diphenoxy-ethane-4,4'-dicarboxylate
IPC: C08G63/672
Filed: 1969-06-03
Abstract: 1278051 Polyethylene 1,2-diphenoxyethane- 4,4<SP>1</SP>-dicarboxylate ASAHI KASEI KOGYO KK 3 June 1969 [3 June 1968] 28134/69 Heading C3R Polyethylene 1,2 - diphenoxyethane - 4,41 - dicarboxylate is prepared by ester interchanging 1,2 - bis - (p - carbomethoxyphenoxy)-ethane and ethylene glycol in the presence of an ester interchange catalyst which is a strontium, barium or calcium salt of a monocarboxylic acid having 1 to 4 carbon atoms in the hydrocarbon group or a compound of the Formula I (where R is alicyclic or aromatic, R<SP>1</SP> is alkylene and Me is calcium, strontium or barium), until methanol is no longer evolved and subsequently polycondensing the product in the presence of an antimony compound. Phosphoric acid or triphenyl phosphite may be added prior to the polycondensation. Preferably the 1,2-bis-(carbomethoxyphenoxy) ethane has an acid value of 0À3 or less. The antimony compound may be antimony trioxide, pentoxide, triacetate or fluoride.
Patent GB-896172-A (GB)
Title: Transfer means especially for transferring loads from one position to another
Inventor: GRINDROD SAMUEL HAROLD
IPC: B65G37/00
Filed: 1959-08-18
Abstract: 896,172. Transfer devices for endless conveyers. CANNING & CO. Ltd., W. June 20, 1960 [Aug. 18, 1959], No. 28145/59. Classes 78 (1) and 78 (4). The transfer device is a trolley 12 running along overhead rails 13 and carrying a load arm 17 having a fork 18 at each end thereof. The load arm is given three movements: trolley 12 is reciprocated along rails 13 by motor 21 operating via chain 22; rod 14 (which carries arm 17) is given a vertical movement by cam 16 operated by motor 15, and a horizontally - rotating movement by the engagement of pinion 19 with stationary rack 20. The movement of the trolley is synchronized with that of endless conveyers 10 and 11. Operation.-Two hangers on conveyer 10 are engaged by the respective forks 18, the forks rising to lift off the hangers. The trolley then moves along the rails to cause the forks to turn through 180 degrees and the forks then drop to transfer the hanger on to conveyer 11. In this way plated articles can be removed from conveyer 10 to conveyer 11 and, on the return journey, articles for plating can be transferred from conveyer 11 to conveyer 10.
Patent GB-435226-A (GB)
Title: Improvements in the fixing of wooden posts, rails and studs in place of mortising orbracing
IPC: E04B1/26
Filed: 1934-10-02
Abstract: 435,226. Angle pieces. HEDGECOCK, G. E., 94, Biddulph Mansions, Elgin Avenue, Maida Vale, London. Oct. 2, 1934, No. 28177. [Class 52 (ii)] [See also Group XXII] A bracket for use in securing rails &c. without mortising or bracing comprises a piece of flat metal cut and folded to form an open-topped rectangular socket D, E, with external flanges C drilled for nails or screws. The blank may be shaped to form a right-angled joint, Fig. 2, or an acute-angled joint, Fig. 4.
Patent GB-860481-A (GB)
Title: A system for measuring the supply or consumption of direct current
IPC: G01R19/20
Filed: 1957-09-09
Abstract: 860,481. Magnetic circuits. KRIZIKKARLIN VYVOJOVY ZAVOD, NARODNI PODNIK, TOMANEK, E., and POLACEK, A. Sept. 9, 1957 [Oct. 4, 1956], No. 28367/57. Class 40 (9). [Also in Group XXXVI] In a system for determining the magnitude and direction of a direct current i, a voltage proportional to i is supplied to a measuring-device 9, and is derived from the difference in voltage drops across two resistors 6, 7 connected respectively in the working winding 1 and the polarizing winding 3 circuits of a transductor T, the control winding 2 of which is fed with the current i. An alternating supply voltage is applied across the working winding 1 in series with a rectifier bridge 4, the rectified output current producing a voltage drop across resistor 6. The supply voltage also feeds rectifier bridge 5 through an insulating transformer 11, and the rectified current feeds in series the polarizing winding 3 and a resistor 7. The difference in the voltage drops across resistors 6 and 7 is measured by the instrument 9 having a centre zero. Initially the instrument is balanced to zero, in the absence of the current i, by varying either or both the resistors 6, 7. A smoothing capacitor 10, and a limiting resistor 8 are incorporated in the polarizing winding circuit.
Patent GB-536612-A (GB)
Title: Improvements in servo motors
IPC: F15B9/12
Filed: 1940-08-12
Abstract: 536,612. Fluid-pressure servomotors. DODSON, E. Aug. 12, 1940, No. 28404/39. [Class 135] A hydraulic servomotor comprising a doubleacting cylinder with floating lever follow-up control has a byepass conduit between the two ends of the cylinder controlled by a relief valve which is normally held closed by the pressure of the fluid supply but is biassed to open the conduit in the event of the said pressure failing. The relief valve comprises a piston valve 243 with an'annular groove adapted to form a transfer passage between ports 240, 241 in a liner 239 leading through passages 236, 237 to the opposite sides of the power piston 12. The valve is normally held in the closed position against the action of a spring 251 by the pressure of the motivefluid acting on the top of the valve member. The power piston is controlled by a piston valve 14 working in a ported liner and coupled to an intermediate point of a floating lever 15. One end of this lever is coupled by a link 17 to the power pistons and to the element operated, for example the throttle of an internal combustion engine on an aircraft, while the other end is coupled to a hand control. In the event of the motive fluid supply failing the valve is moved so that it either engages a stop 34 or the nut 35 engages the end of the liner whereafter the floating lever mechanically operates the controlled elements, the relief valve permitting the free movement of the piston.
Patent GB-308156-A (GB)
Title: An improved electro-mechanical amplifier
IPC: H03F13/00
Filed: 1928-10-04
Abstract: 308,156. Thurm, L. Oct. 4, 1928 Non-contact-making relays.- In 'amplifiers of the type in which a disc 1 rotates in the field of a magnet carrying the input currents, the output current being taken from brushes 5. 6, at the centre and rim of the disc, the disc is insulated from the shaft. Several discs may be carried by the same shaft and may be used as independent-amplifiers, e.g. in picture telegraphy, or may be connected in cascade.
Patent GB-445295-A (GB)
Title: Improvements in or relating to liquid pressure jacking system for vehicles
IPC: B60S9/10
Filed: 1934-10-05
Abstract: 445,295. Jacking- apparatus on motor vehicles; valves. CLENCH, E. C. S., Beechcroft, Kenilworth Road, Leamington Spa, and AUTOMOTIVE PRODUCTS CO., Ltd., Brock House, Langham Street, London. Oct. 5, 1934, Nos. 28520 and 31587. [Class 79 (iii)] [See also Groups XXIX and XXXIV] In a motor vehicle fitted with a combined hydraulic jacking and braking system, a master cylinder, replenished from a feed reservoir and normally used for applying the brakes, is arranged to supply the pressure fluid for the jacks, the jacks being brought into operation by actuation of a valve or valves. The master cylinder 12, fed by a reservoir 10, is connected by a flexible pipe 13 to a main pipe line 14 leading to the rear brakes 25, 26 by a flexible connection 24 and transverse pipe 22 and to the front brakes by flexible connections 18, 20. Jacks 27, 28, attached to the rear axle 23, are connected by a common pipe 29, through a valve 33, to the rear brake supply pipe 22. A single front jack or a pair of jacks 41, 42 attached to the front axle 38 and connected by a transverse pipe 37 are connected to the pipe 14 by a flexible pipe 40 and valve 39. Each valve may comprise a body 43 having pipe unions 45, 46, and a straight through passage containing a pair of opposed non-return ball valves 47, 48 with seatings 49, 50, the ball 48 being normally pressed on its seating by a spring-pressed plunger 51 to isolate the jacks from the braking system. The valves are controlled by a rotary member 52 having a cam or eccentric portion 56 acting through spacing blocks 57, 58 and rotatable through 180‹ to hold either ball off its seating. When the valve 48 is opened, fluid from the main pipe line enters to actuate the jacks, the valve 47 preventing return until the control member 52 reverses the action. The control member, which is threaded into the body 43 at its lower end is rotatable between stops 54, 55 by application of a spanner or wheel brace to its hexagonal head 33. In the case of the rear valve, which may be inaccessible, the hexagonal head may be provided on the end 35 of a rod 34 universally jointed to the control member. Specifications 256,099, [Class 79 (iii)], and 438,120 are referred to. The first Provisional Specification describes an arrangement wherein the jacks are selectively operated through a distributing valve from the master cylinder which, during the process, is isolated from the brakes. The second Provisional Specification describes a shuttle valve performing the functions of the valve shown in Fig. 2.
Patent GB-152288-A (GB)
Title: Improvements in or relating to friction roller gearing
IPC: F16H13/06
Filed: 1920-10-08
Abstract: 152,288. Krupp Akt.-Ges., F. Oct. 11, 1919, [Convention date]. Friction gearing; connecting and disconnecting arrangements.-A friction roller gearing comprises three friction rollers B, rotatably mounted on a flange C' so as to permit a slight radial movement, engaging with a friction roller A' on the driving-shaft. Two helical springs E, E', one left-handed and the other right-handed, surround the rollers, and bear against plate springs in the casing. Their outer ends bear against stops G, G<1>, and their inner ends against stops formed in a ring H. Bolts J pass through the springs and have spherical bearings which enable them to take up positions not parallel to the shaft. The extremities of the bolts J are spherical and rest in sockets g<3>, h<2> in the rings G, G<1>, and H. The ring H is adjustable by the twoarmed lever K, K<1> which is connected to the ring by links M. The lever is adapted to be fixed by means of the nut and screw arrangement N, thereby adjusting the internal diameter of the springs and consequently the pressures of the rollers to connect and disconnect the gearing. Specification 12394/00 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the helical springs E, E<1> and the rings G, G<1> and H may be cut from the same cylindrical piece of metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1105156-A (GB)
Title: Non-silver halide photographic print-out compositions
Inventor: SPRAGUE ROBERT HICKS
IPC: G03C1/73
Filed: 1965-07-06
Abstract: 1,105,156. Photographic light-sensitive print-out composition. HORIZONS Inc. July 6, 1965 [Sept.11, 1964], No.28626/65. Heading G2C. A photographic print-out composition sensitive to visible light comprises a mixture of (1) at least one colourless compound of the formula:- wherein each R 1  is hydrogen, alkyl of up to 4 carbon atoms or aryl, each R 2  is hydrogen or alkyl and R 3  is hydrogen, alkyl or substituted or unsubstituted aryl, and (2) at least one activator therefor which is either (a) an organic bromine compound of the formula A-CBr 3  where A is hydrogen, chlorine, bromine, alkyl, haloalkyl, aryl or aroyl or (b) a colourless non-toxic compound selected from compounds of the formulae R-SH or R-S-S-R where R is a heterocyclic nucleus or of the formula:- where each R" is hydrogen, alkyl or up to 4 carbons or aryl, or from thioureas, thioacetanilides, α-mercaptoacetanitides, rhodanines, 2:4-thiazolidinedione and quinoline isothiouronium halides, the activator comprising from 0À1 to 10 parts by weight for each part by weight of the anthracene compound. The print-out image may be fixed by treatment with a solvent or by heat.
Patent GB-243527-A (GB)
Title: Improvements in cellular packs for fruit
IPC: B65D85/34
Filed: 1924-11-29
Abstract: 243,527. Pershore Co-operative Fruit Market, Ltd., and Ross, A. G. Nov. 29, 1924. Fittings, internal.-In packing fruit, the outer container 1 is lined with loose corrugated cardboard 2 and the tiers are formed by sheets 3. The fruits are arranged in lines or rows parallel to the sides of the outer container, each line being separated from the adjacent lines by a strip 5 of corrugated paper, the upper edges of which are divided by a series of cuts 6. The members 7 thus formed bend over under pressure to form a series of spring members which act as shock absorbers. The individual fruits in any line are separated by short strips 8 of similar material.
Patent GB-847265-A (GB)
Title: Improvements relating to mechanical linkages
Inventor: JONES THOMAS CONWAY
IPC: G01N23/207
Filed: 1957-09-11
Abstract: 847,265. X-ray analysers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 22, 1958 [Sept. 11, 1957], No. 28673/57. Class 40(3). [Also in Groups XX and XXIV] A linkage for an X-ray analysing apparatus of the kind described in Specification 847,264, is adapted to provide a magnified rotation of one member with respect to the other at a constant ratio of movement. As shown, a first arm 5 carries a reflecting crystal 3 for X-rays from a specimen 2 which is bombarded with an electron beam, and a second arm 8 carries a Geiger counter 4 receiving the reflected rays. The arms 5 and 8 have extensions 7 and 14 respectively which are coupled by a link 13 and a slider 19 on the arm extension 7, this slider also being coupled by a link 10 to a fixed arm 12. The arrangement shown is such that the arm 8 is moved through twice the angle of arm 5 relative to fixed arm 12 which latter is indicated on a Bragg angle scale 23 by a pointer 24. A parallelogram linkage 16, 17, 18 maintains the orientation of the Geiger counter in relation to the reflecting crystal 3.
Patent GB-207185-A (GB)
Title: Improvements in faller operating mechanism for gill boxes
IPC: D01H5/04
Filed: 1923-11-14
Abstract: 207,185. Hemsley, G. T. Nov. 17,1922, [Convention date]. Gill boxes.-The faller-operating cam in a gill box is provided with detachable cam pieces secured to the cam-plate. The plate B, Fig. 11, is secured by a key 12 to the barrel 11, Fig. 1, and is provided with non-circular recesses 32 to accommodate projections 22 on the backs of the cam pieces C. The cam pieces are secured by screws 25 from the back of the plate B. In cases where the cam pieces are integral with the plate, they may be cut away and a recess formed in the plate to take the projection on the'substituted detachable cam piece,. The detachable cam pieces may be applied to a two-piece plate secured on the shaft by a tapered sleeve and look-nut; or a twopart sleeve 60. 61, Fig. 11, may be applied to the squared part 52 of the shaft and a cam-plate B be keyed to this sleeve, and detachable, cam pieces secured to it.
Patent GB-1078661-A (GB)
Title: Improvements in or relating electric control means for controlling the position of a power driven movable object
Inventor: VARRALL JOHN EUSTON
IPC: G05D3/12
Filed: 1964-07-13
Abstract: 1,078,661. Digital servo systems. AIRMEC Ltd. July 13, 1965 [July 13, 1964], No. 28793/64. Heading G4H. A movable member is driven to a position defined by decimal digits set up on switches SA, SB, SC, SD and SE. Switches SA 1 , SA 2  to SD 1 , SD 2  connect source 22 across appropriate adjacent taps on potentiometers PA to PD. Initially, all relays RLA to RLD are energized. With switch SB 3  in either of its extreme positions, the error voltage from PA is zero when wiper LA, coupled to the movable member, reaches one or other of the taps opposite the taps selected by SA 1  and SA 2 . Balance between these taps is obtained by means of switch SB 3  which supplies RLA with a voltage corresponding to the next lower digit. The threshold voltage of RLA is such that the relay is de-energized to transfer control to the next potentiometer PB when the latter is within 144 degrees of balance, this being the arc over which control is possible. Relays RLA to RLD are de-energized in succession as their respective potentiometers PA-PD reach balance, the wiper of PD coming to rest at a point between a pair of adjacent taps which is determined by the least significant digit set up on SE 3 . In another embodiment, Fig. 3 (not shown), potentiometers PA-PD are replaced by commutators having equal resistors connected between adjacent segments. Switches SA 1 , SA 2  &c. select a pair of adjacent segments, supplying a positive voltage to one segment and a negative voltage to the other. A further pair of switches SB 3 , SB 4  &c. set according to the next lower digit, shift the voltage supplied to the selected segments with respect to earth, so that although the voltage between the selected segments remains at V 1 , the potential of the swo segments is adjustable in steps of V 1 / 10 . The error voltages obtained from the commutator wipers are applied to a logic network, Fig. 4 (not shown), which selects the error voltages in turn and may also control the motor driving the member so that its speed is successively reduced as the desired position is reached. The number of segments in each commutator may be reduced by using a plurality of brushes connected in parallel, Fig. 5 (not shown). The least significant potentiometer PD or the corresponding commutator may additionally be rocked by stepping device in accordance with a further, less significant, digit or by a cam to correct for lead-screw errors. A linkage for summing both additional rotations for application to PD is described, Fig. 6 (not shown).